Any way to link a linked account to gamecenter

Hey guys i haven't played haypi for a long time .. i made my ipod new and i created a new game center account.. my old haypi account was linked to my old game center account.. but i can't remember my old email address..
is it able to link my haypi kingdom charakter to my new game center account ?

[support2]

Hi,
I am sorry that you cannot link your haypi kingdom character to new game center account, because game centre can only be linked to ONE account.